<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script type="text/javascript" src="./js/vue.js"></script>
</head>

<body>
  <div id="app">
    <input type="text">
    <button>发表评论</button>
    <div id="com-content">
      <p>{{msg}}</p>
    </div>
  </div>
  <script>
    var app = new Vue({
      el: '#app',
      data: {

      }
    })
  </script>
</body>

</html>